\input zb-basic \input zb-ioport \iteman{io-port 05569966} \itemau{Abdel-All, Nassar H.; Mofarreh, Fatimah Y.} \itemti{Geometry of similarity helical motions.} \itemso{Far East J. Math. Sci. (FJMS) 31, No. 3, 491-500 (2008).} \itemab Summary: This paper is concerned with the geometry of configuration space of a generalized type of similarity Helical motions (equiform kinematics). This study is considered as a continuation to [{\it N. H. Abdel-All} and {\it F. Y. Mofarreh}, Far East J. Math. Sci. (FJMS) 29, No.~2, 431--438 (2008; Zbl 1153.53006)]. For carrying out this investigation, we use the methods of vector calculus to do the computations. Finally qualitative study on the singularities of the motion is given through some of applications which are plotted and interpreted geometrically. \itemrv{~} \itemcc{} \itemut{similarity helical motions; configuration space} \itemli{http://pphmj.com/abstract/3741.htm} \end